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Article State

Approved

Article Number

KB-20161016152234

Product

Product NetWorker 8.1.2, NetWorker 8.2.1, NetWorker Module for Databases and Applications, NetWorker Module for Databases and Applications 1.6, NetWorker Module for Databases and Applications 8.2
Summary

Language

EN

DE

Issue

If you enable Client Direct on a back up to a DDBOOST devices of a NW Client installed on a x64bit OS with a 32bit version of NMDA, you will get the following error message:

. . .
* bbmaghi:NOTES: 80874:nsrdasv: Loading the library at 'libDDBoost.dll' failed ([0] unknown error 193 (0xc1))
* bbmaghi:NOTES: Refer to the NetWorker release notes to ensure Data Domain devices are supported on this platform.
. . .




Cause

This  because the NW Client software will not use its own 64bit version of the DLL  libDDBoost.dll  but will try to use the 32bit version of the DDDBOOST DLL that should be located in the bin directory of the NMDA installation.

You will also notice that, In this type of situation the File system backup will still be successful when backing up using client Direct, because the NW Client software will use its own 64bit version of the DLL  libDDBoost.dll




Solution

  • You will need to install a 32bit version of NW Client software on a 32bit OS machine (as in System B).
  • locate the NW bin directory on the system B
    • example: < C:\Program Files (x86)\EMC NetWorker\nsr\bin >
  • Then, locate the NMDA bin directory on System A
    • example: < C:\Program Files (x86)\EMC NetWorker\nsr\bin >
      Note:  This is the 32bit NMDA bin directory that we are referring to only here and not the x64 NW Client bin directory.  [ Very important! ]
  • Copy the following 3 files( libDDBoost.dll, libDataDomainpthread.dll, libDataDomainoncrpc.dll )from System B to System A in the above outlined directories.
  • After copying the above 3 files, you should be able to see something similar to the following:
    • < >C:\Program Files (x86)\EMC NetWorker\nsr\bin>dir libD*
       Volume in drive C has no label.
       Volume Serial Number is 7224-8A57
       
       Directory of C:\Program Files (x86)\EMC NetWorker\nsr\bin
       
      24/01/2014  13:46           110,592 libDataDomainoncrpc.dll
      24/01/2014  13:46            60,928 libDataDomainpthread.dll
      24/01/2014  13:46         1,323,008 libDDBoost.dll
                     3 File(s)      1,494,528 bytes
                     0 Dir(s)   4,847,603,712 bytes free
Now a new backup test with client direct enabled to a DDBOOST device on System A, and the backup should complete without any error messages. 



Workaround

Here is the workaround to this issue:

. . . . . . .
*System A configuration:
                - OS is 64bit
                - Domino is 32bit
                - NMDA is 32bit
                - NW Client 64bit
 
*System B configuration
- OS is 32bit
                - NW Client 32bit
- - - - - - - - - -


To avoid this error message on System A, when you run a backup using Client Direct...

(* bbmaghi:NOTES: 80874:nsrdasv: Loading the library at 'libDDBoost.dll' failed ([0] unknown error 193 (0xc1)).)




Notes

Tested on the following NetWorker Client environments:

  • OS: Windows
  • Applications:  Domino and Sybase
  • Will test on Linux or Unix  and will update the KB with the results in the future
  • Will test Oracle and will update the KB with the results in the future





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